Leather and rubber article



amfoz M. REGULA LEATHER AND RUBBER ARTICLE F'i led Oct.

Jul 1 1924.

REGULA, OF N YORK, N. Y.

TH AND R'UBB ARTICLE.

Application filed Getuber 81, 1922. Serial Ho. scenes.

1 is a specification.

This invention relates to a leather and rubber compound adapted for use in the soles and heels of shoes, in mats, or in place of linoleum in difierent places, such as the running boards of automobiles.

The invention has for a general object to provide articles of the above type characterized by high durability and flexibility, and which are inexpensive to manufacture.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accom anying drawings, and to the a pended c aims in which the various novel are more particularly set forth.

Fig. 1 of the drawings is a perspective view of a combination sole and heel such as are used on outing or sport shoes.

Fig. 2 is a sectional view showing a sheet of material constructed according to the invention.

In carrying out my invention I preferably make use of old leather, or scrap leather,

which would otherwise be wasted. This layer 11 of the comminuted leather, with the particles relatively spaced far apart from one another is then placed on top of this initial layer. A screen 12 of cotton thread is then placed over the layer of leather the meshes of the screen bein preferably of approximately one-sixteent inch dimension. A second and thinner la or 13 of rubber paste is then placed on t e screen 12. A

eatures of the invention second layer 14 of the comminuted leather is placed on the top rubber layer, the articles being spaced relatively close toget er. A second gauze screen 15 is placed on the to layer of leather and a third layer of ru ber paste spread onthe said screen.

The structure thus built up is first subjected to pressure in a mold and is then vulcanized. The resultant {sheet of material 8% may then be cut into suitable forms for such use as may be desired. With thearrangement as set forth I provide a tread surface of resilient rubber while at the same time the inner portion ofthe sheet is composed in increasing degree of the otherwise waste leather.

The screens act to hold the layers of leather in place while the rubber layers are being spread thereover while at the same time they ofl'er no resistance to the uniting of the different layers under pressure into a solid mass, the rubber being forced between the particles of leather so as to unite the different layers together.

'In Fig. 1 of the drawings I show a sole 20 for a shoe, particles 14: of thetop layer of leather being indicated as forced through Having thus described my invention what I claim as new and desire to protect by to the surface of the top layer 16 of rubber. Y

Letters Patent of the United States is as follows: 7

1. A- sheet of material made up of rubber and small particles of leather embedded in said rubber, the particles of leather being more closely spaced toward the inner face of the sheet.

2TA sheet of material made up of rubber and small particles of leather embedded in said rubber, the particles of leather being more closely spaced toward the inner face of the sheet, and a layer. of pure rubber being formed at the outer face of the sheet.

3. The process of making a sheet of ma terial which consists in superimposing successive layers of rubber paste and leather particles with the upper layer of leather particles more closely spaced than the lower layer, and subjecting t e same to pressure.

t. The process of making a sheet of materiel which consists in spreading successive covering said last layer with a textile layers of rubber paste endl leether perticles, screen, spreg on said screen another lacing a textile screen over the layer of layer of rubber paste, and subjecting the 1163 eather particles, spreading on seicl screen at Whole mess to pressure.

15$ second layer of rubber paste, placlng on said In testimony whereof I have eecl my lest leyer e seconcl lsyer of leather particles signature. more closely speoeol then the first layer, MATISUIAS REGULA. 

